Metal Hydride-Based Composite Materials with Improved Thermal Conductivity and Dimensional Stability Properties

Abstract:

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To address the issues of poor thermal conductivity and fragmentation of metal hydride particles undergoing hydriding/dehydriding reactions, a metal hydride-based composite material was developed. The active metal phase was embedded in a silica matrix and a graphite filler was incorporated by ball milling. A set of compact pellet samples at different composition were prepared and tested. Experimental data obtained from the thermal conductivity measurements shown that using powder graphite produced a quite linear increase in the thermal conductivity of the metal hydride – silica composite. Ongoing studies include composition optimization as well as long-term testing upon cycling of such metal hydride composites to evaluate their potentiality in technological hydrogen storage applications.

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Periodical:

Edited by:

Pietro VINCENZINI, Cynthia POWELL, Marco VITTORI ANTISARI, Vincenzo ANTONUCCI and Fausto CROCE

Pages:

170-175

DOI:

10.4028/www.scientific.net/AST.72.170

Citation:

M. Pentimalli et al., "Metal Hydride-Based Composite Materials with Improved Thermal Conductivity and Dimensional Stability Properties", Advances in Science and Technology, Vol. 72, pp. 170-175, 2010

Online since:

October 2010

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Price:

$35.00

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